US2999514A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controls for fluid treatment apparatus
Assignee: Union Tank Car Co
•
Filing: 1958-06-25
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Granted: 1961-09-12
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Expires: 1978-06-25
Abstract
No abstract record available.
Inventors
- 👤 Benjamin H Kryzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:25
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/44; F16K31/48; C; C02; C02F; C02F1/00; C02F1/42; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86389; Y10T137/86445; Y10T137/87265; Y10T137/87571; Y10T137/87587; Y10T137/87619; Y10T137/877; Y10T137/87829
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2265225A
Cited
US2539748A
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US2855944A
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US2870788A
Cited
US2744867A
Cited
US2751347A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-11 | 1965-03-13 | 1965-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-11 | 1969-03-13 | 1969-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-11 | 1973-03-13 | 1973-09-12 | $7700.00 | Window Closed / Lapsed |